diff --git a/sas/api.py b/sas/api.py
index 5d202942..ea4c1c74 100644
--- a/sas/api.py
+++ b/sas/api.py
@@ -5,13 +5,9 @@ from ninja_extra.exceptions import PermissionDenied
 from ninja_extra.permissions import IsAuthenticated
 from pydantic import NonNegativeInt
 
-from core.api_permissions import IsOldSubscriber
 from core.models import User
 from sas.models import PeoplePictureRelation, Picture
-from sas.schemas import (
-    PictureFilterSchema,
-    PictureSchema,
-)
+from sas.schemas import PictureFilterSchema, PictureSchema
 
 
 @api_controller("/sas/picture")
@@ -28,11 +24,17 @@ class PicturesController(ControllerBase):
         A user with an active subscription can see any picture, as long
         as it has been moderated and not asked for removal.
         An unsubscribed user can see the pictures he has been identified on
-        (only the moderated ones, too)
+        (only the moderated ones, too).
 
         Notes:
             Trying to fetch the pictures of another user with this route
             while being unsubscribed will just result in an empty response.
+
+        Notes:
+            Unsubscribed users who are identified is not a rare case.
+            They can be UTT students, faluchards from other schools,
+            or even Richard Stallman (that ain't no joke,
+            cf. https://ae.utbm.fr/user/32663/pictures/)
         """
         user: User = self.context.request.user
         if not user.is_subscribed and filters.users_identified != {user.id}:
@@ -53,14 +55,17 @@ class PicturesController(ControllerBase):
         return pictures
 
 
-@api_controller("/sas/relation")
+@api_controller("/sas/relation", tags="User identification on SAS pictures")
 class UsersIdentifiedController(ControllerBase):
-    @route.delete("/{relation_id}", permissions=[IsOldSubscriber])
+    @route.delete("/{relation_id}", permissions=[IsAuthenticated])
     def delete_relation(self, relation_id: NonNegativeInt):
-        relation: PeoplePictureRelation = self.get_object_or_exception(
-            PeoplePictureRelation, pk=relation_id
-        )
-        user = self.context.request.user
+        """Untag a user from a SAS picture.
+
+        Root and SAS admins can delete any picture identification.
+        All other users can delete their own identification.
+        """
+        relation = self.get_object_or_exception(PeoplePictureRelation, pk=relation_id)
+        user: User = self.context.request.user
         if (
             relation.user_id != user.id
             and not user.is_root
diff --git a/sas/tests/test_api.py b/sas/tests/test_api.py
index 917f73d0..58079e70 100644
--- a/sas/tests/test_api.py
+++ b/sas/tests/test_api.py
@@ -1,10 +1,12 @@
+from django.conf import settings
+from django.db import transaction
 from django.test import TestCase
 from django.urls import reverse
 from model_bakery import baker
 from model_bakery.recipe import Recipe
 
 from core.baker_recipes import old_subscriber_user, subscriber_user
-from core.models import User
+from core.models import RealGroup, User
 from sas.models import Album, PeoplePictureRelation, Picture
 
 
@@ -32,6 +34,8 @@ class TestSas(TestCase):
             baker.make(PeoplePictureRelation, picture=pictures[4], user=cls.user_b)
             baker.make(PeoplePictureRelation, picture=pictures[4], user=cls.user_c)
 
+
+class TestPictureSearch(TestSas):
     def test_anonymous_user_forbidden(self):
         res = self.client.get(reverse("api:pictures"))
         assert res.status_code == 403
@@ -101,3 +105,49 @@ class TestSas(TestCase):
             + f"?users_identified={self.user_a.id}&users_identified={self.user_b.id}"
         )
         assert res.status_code == 403
+
+
+class TestPictureRelation(TestSas):
+    def test_delete_relation_route_forbidden(self):
+        """Test that unauthorized users are properly 403ed"""
+        # take a picture where user_a isn't identified
+        relation = PeoplePictureRelation.objects.exclude(user=self.user_a).first()
+
+        res = self.client.delete(f"/api/sas/relation/{relation.id}")
+        assert res.status_code == 403
+
+        for user in baker.make(User), self.user_a:
+            self.client.force_login(user)
+            res = self.client.delete(f"/api/sas/relation/{relation.id}")
+            assert res.status_code == 403
+
+    def test_delete_relation_with_authorized_users(self):
+        """Test that deletion works as intended when called by an authorized user."""
+        relation: PeoplePictureRelation = self.user_a.pictures.first()
+        sas_admin_group = RealGroup.objects.get(pk=settings.SITH_GROUP_SAS_ADMIN_ID)
+        sas_admin = baker.make(User, groups=[sas_admin_group])
+        root = baker.make(User, is_superuser=True)
+        for user in sas_admin, root, self.user_a:
+            with transaction.atomic():
+                self.client.force_login(user)
+                res = self.client.delete(f"/api/sas/relation/{relation.id}")
+                assert res.status_code == 200
+                assert not PeoplePictureRelation.objects.filter(pk=relation.id).exists()
+                transaction.set_rollback(True)
+        public = baker.make(User)
+        relation = public.pictures.create(picture=relation.picture)
+        self.client.force_login(public)
+        res = self.client.delete(f"/api/sas/relation/{relation.id}")
+        assert res.status_code == 200
+        assert not PeoplePictureRelation.objects.filter(pk=relation.id).exists()
+
+    def test_delete_twice(self):
+        """Test a duplicate call on the delete route."""
+        self.client.force_login(baker.make(User, is_superuser=True))
+        relation = PeoplePictureRelation.objects.first()
+        res = self.client.delete(f"/api/sas/relation/{relation.id}")
+        assert res.status_code == 200
+        relation_count = PeoplePictureRelation.objects.count()
+        res = self.client.delete(f"/api/sas/relation/{relation.id}")
+        assert res.status_code == 404
+        assert PeoplePictureRelation.objects.count() == relation_count